Yulun Wu, University of Ottawa
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Intro
Hi! I’m a PhD student in the Shallow Water Earth Observation Lab at the University of Ottawa. I study atmospheric correction for satellite-based aquatic remote sensing over coastal and inland waters. My current goals are to deepen my understanding of radiative transfer in the ocean-atmosphere systems and collect more in-situ radiometric and water-quality data in lakes and rivers across Ontario and British Columbia, Canada.
Modelling and correcting for the adjacency effect
My PhD thesis focuses on the adjacency effect and how it affects water’s top-of-atmosphere radiance. The adjacency effect describes the contribution of land towards water’s colour seen from space, and I address this with a 3D Monte Carlo radiative transfer code that I developed. This work supports satellite-derived bathymetry and remote sensing of aquatic biochemical processes in coastal and inland environments.
Figure 1. Illustration of a photon interacting with a triangulated surface in T-Mart. The photon travels from the blue end to the red end of the vertical line, intersecting the triangulated pixel below. The green line represents the surface normal of the triangle. The orange line is the sampled direction of the photon’s next movement.
Fieldwork
